AC4790-200M-485 Laird Technologies, AC4790-200M-485 Datasheet - Page 43
![TXRX 900MHZ 3.3-5.5V FHSS 200MW](/photos/14/21/142179/mfg_ac4790-xxxx-485_series_sml.jpg)
AC4790-200M-485
Manufacturer Part Number
AC4790-200M-485
Description
TXRX 900MHZ 3.3-5.5V FHSS 200MW
Manufacturer
Laird Technologies
Series
AeroCommr
Specifications of AC4790-200M-485
Frequency
902MHz ~ 928MHz
Data Rate - Maximum
115.2kbps
Modulation Or Protocol
FHSS, FSK
Applications
AMR, Fire & Security Alarms, Telemetry
Power - Output
5mW ~ 200mW
Sensitivity
-110dBm
Voltage - Supply
3.3V, 5V
Current - Transmitting
68mA
Data Interface
Connector, 2 x 10 Header
Antenna Connector
MMCX
Operating Temperature
-40°C ~ 85°C
Package / Case
Module
Wireless Frequency
900 MHz
Interface Type
20-pin mini connector
Board Size
49 mm x 42 mm x 5 mm
Modulation
FHSS, FSK
Security
1 byte System ID, DES
Operating Voltage
3.3 V to 5.5 V
Output Power
200 mW
Antenna
Integral and External Dipole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Memory Size
-
Current - Receiving
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
PCB THickness Notes:
For 0.062 thick PC board microstrip width and
spacing is 0.110 inches.
For 0.031 thick PC board microstrip width and
spacing is 0.055 inches.
F i g u r e 9 : A C 4 7 9 0 - 1 x 1 P C B C o n s i d e r a t i o n s
Ground plane on the bottom side of
Note: Must provide solid copper
side ground to the bottom layer ground plane.
Use several large vias (0.030" hole) to tie top
SN: 005068004503
PN: AC4790X-1X1
pc board in this area.
www.lairdtech.com\wireless
uStrip
Must continue microstrip width and
grounds along the entire length.
Gnd
Gnd
Note: Keep distance between 1x1 Module
and antenna connector as short as
possible for better performance.
1206 SMT Chip Capacitors, can
use 0805, 0603 or even 0402
parts. Shunt parts should be
symetrical about series part and
close as possible.
0.110
0.110
0.110
Gnd
Gnd
Terminate at RF
Antenna Connector
Customer's PC Boar
D I M E N S I O N S
3 9